Method of producing bearing devices for driving wheels of automobiles

Abstract

A method of manufacturing bearing assembly for the driven wheels of automobiles comprises the steps of grinding the outer peripheral raceway surface 5, cylindrical seat 6 and shoulder surface 9 of the outer joint member of a constant velocity joint simultaneously by a grinding wheel 21, grinding the outer peripheral raceway surface 11 of an inner annular member and its end surface abutting against the shoulder surface 9 simultaneously by a grinding wheel, and fitting the inner annular member C on the cylindrical seat 6 of the outer joint member B until its end surface 10 abuts against the shoulder surface 9 of the outer joint member B. The method eliminates the influences on the internal bearing clearance of the outer peripheral raceway surfaces 5 and 11 of the outer joint member B and inner annular member C.

What is claimed is: 
     
       1. A method of manufacturing bearing assembly for the driven wheels of automobiles, which bearing assembly comprises an outer member having two rows of raceway surfaces formed on the inner periphery thereof, the outer joint member of a constant velocity joint having a raceway surface formed on the outer periphery thereof, an inner annular member having another raceway surface formed on the outer periphery thereof, and two rows of rolling elements interposed between the raceway surfaces of said outer member, outer joint member, and inner annular member, said outer joint member being formed with a cylindrical seat on which said inner annular member is fitted, with said inner annular member axially abutting against a shoulder surface formed at one end of the cylindrical seat, said method being characterized by the steps of of grinding at least said raceway surface of the outer joint member, said cylindrical seat surface, and said shoulder surface simultaneously by a grinding wheel, grinding at least said raceway surface of the inner annular member and its one end surface which abuts against the shoulder surface simultaneously by a grinding wheel, and fitting said inner annular member on the cylindrical seat of the outer joint member until it abuts against the shoulder surface. 
     
     
       2. A method of manufacturing bearing assembly for the driven wheels of automobiles as set forth in claim 1, characterized in that in simultaneously grinding the outer peripheral raceway surface and said end surface of the inner annular member by a grinding wheel, the raceway diameter to be finished of the inner annular member is determined on the basis of the result of the measurement of the bore diameter of the inner annular member by a gauge. 
     
     
       3. A method of manufacturing bearing assembly for the driven wheels of automobiles as set forth in claim 1, characterized in that in grinding the bore of the inner annular member by a grinding wheel, the diameter of the bore to be finished of the inner annular member is determined on the basis of the result of the measurement of the raceway diameter of the inner annular member by a gauge.